[ferrarista2]

Correct

The stradale wheels are 19", and really need tyre presure monitoring as if you lose only a few psi from a 19", you'll damage the tyres, the 18" wheels use tyres with the same outside circumference, meaning they hold a larger volume of air, and therefore can afford to lose a little without going down on pressure so much.

The 360 Challenge wheels are the only wheels you can fit which actually add value to the car, like a 360C rear grille or tubi exhaust.. they go as a set.

How bout 430 stradale rims?? Are they worse than challenge wheels.?? Also, someone told me my wheels are magnesium...is this true??